Back to Text Tools

Text Diff Checker

Compare two texts and see the differences highlighted line by line.

All text is processed in your browser. Nothing is uploaded to any server.

Text Diff Checker — Compare Documents

Compare two texts side-by-side with differences highlighted. Perfect for reviewing changes.

Quick answer: Text Diff Checker

Text Diff highlights additions, removals, and changes between two versions. Paste old and new text to review contract edits, copy, code, or answers without rereading everything.

Input
Two text versions to compare.
Output
A difference view marking additions and removals.
Know before use
The tool shows character or line changes, not legal meaning or factual correctness; important documents still require human review.
Measure the final version with Word Counter.
  • ✓100% free, no sign-up required
  • ✓Runs entirely in your browser — no file upload to server
  • ✓Fast processing with instant results
  • ✓Works on desktop and mobile
  • ✓Privacy-first: your data never leaves your device

How to Use

  1. 1
    Prepare the input

    Two text versions to compare.

  2. 2
    Configure and process

    Text Diff highlights additions, removals, and changes between two versions. Paste old and new text to review contract edits, copy, code, or answers without rereading everything.

  3. 3
    Review the result

    A difference view marking additions and removals.

What do I need to use Text Diff Checker?

Two text versions to compare.

What does Text Diff Checker produce?

A difference view marking additions and removals.

What are the limitations of Text Diff Checker?

The tool shows character or line changes, not legal meaning or factual correctness; important documents still require human review.